Safe removal of gasses, water and solvents from used lubricating

Salt bath refining

SAPO-11 molecular sieve, its synthetic method and a catalyst...

Sapo-supported hydrodesulfurization catalyst and processes...

Scavenging of hydrogen sulphide

Sealing system for cyclone leg

Second stage stripping and lift gas supply

Secondary injection of ZSM-5 type zeolite in catalytic cracking

Segregation of streams for the production of ammonia

Selected hydroxy-oximes as iron deactivators

Selective adsorbent material and its use

Selective adsorption process for resid upgrading (law815)

Selective bifunctional multimetallic reforming catalyst

Selective bifunctional multimetallic reforming catalyst

Selective catalytic reforming with high-stability catalyst

Selective conversion of normal paraffins

Selective dewaxing of hydrocarbon oil using surface-modified zeo

Selective extraction solvent recovery using regenerated cellulos

Selective extraction using mixed solvent system

Selective high conversion cracking process